Ash-ejector for steamships



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No. 491,959. Patented Peb-14, 189s,

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G. CLARKE. ASH EJEGTOR POB. STBAMSHIPS.

10.491,959. Patented Peb. 14, '1893.V

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GEORGE CLARKE, OF JERSEY CITY, NEW JERSEY.

ASH-EJECTOR FOR STEAMSHIPS.

SPECIFICATION forming part of Letters Patent No. 491,959, dated February14, 1893. Application tiled September 3,189Z. Serial No. 444,955. (Nomodel.)

' To all whom it may concern,.-

Be it known that I, GEORGE CLARKE, a citizen of the United States, and aresident of Jersey City, in the county of Hudson and State of NewJersey, have invented certain new and useful Improvements inAsh-Ejectors for Steamships, of which the following is a specification.

' The invention relates to improvements in ash-ejectors for steam-ships,and consists in the novel construction and arrangement of deviceshereinafter described and claimed, whereby the ashes may be dischargedfrom a hopper in the Stoke-hold upward through a pipe leading throughthe side of the ship, and thus be ejected into the ocean.

The invention involves the employment of water under pressure, sea-waterand air as effectual means for safely and rapidly carrying the ashesupward through the discharge pipe; and incident tothe use of the `waterunder pressure and the sea-water a novel valve has been constructed andforms an important part of the invention hereinafter described andclaimed.

The invention will be more fully understood from the detaileddescription hereinafter presented, reference being had to theaccompanying drawings, in which Y Figure 1 is aside elevation of anejector embodying the invention, the discharge pipe being partly brokenaway, and the ship being indicated in outline and partly broken away;Fig. 2 is a central horizontal longitudinal section on an enlarged scalethrough the valve constituting a part of the invention; Fig. 3 is anenlarged front view of the ashreceiving hopper and connecting air pipeand valve, the same being shown partly in section, Fig. 4 is a centralvertical section of same on tho dotted line 4-4 of Fig. 3; Fig. 5 is adetailed View ot the lower end ot the nozzles leading to the dischargepipe which passes upward from the lowerend ot' the hopper; Fig. 6 is alike view Aon an enlarged scale of the end of the outlets from the valvecasing; Fig. 7 is a detailed view of aportion of one end of the valveand referred t-o by reference letters hereinafter; Fig. 8 is a detachedvertical section of a portion of the valve on the dotted line 8-8 ofFig. 9, and Fig. 9 is a central longitudinal section on an enlargedscale of a portion of the valve with its casing and connections. I

In the accompanying drawings A designates the ash-receiving hopper; Bthe discharge pipe leading therefrom upward through the side of theship, and C the valve casing having inlets D, E for sea-water and waterunder pressure respectively and connected with the lower portion of thedischarge pipe B by the union of its outlets F, G, with the pipe-sectionH, which is bolted to the discharge pipe B below the hopper A.

The hopper A may be of any suitable form, but for convenience lrecommend that it have the form of an inverted cone, as shown in Figs.l, 3 and 4, its upper and enlarged end being provided with a hingedcover I, and hinged revoluble catch J, by which the cover may be lockedin its closed position. The lowerend of the hopper A opens into and isbolted to the lower section K of the discharge pipe B, which receivesthe ashes from the hopper and affords a means for directing them upwardunder Ythe combined action of the air, sea-water and water underpressure.

The pipe B may be of any necessary length and will be composed ofsuitable sectionsl bolted together, the lower section K having in oneside the opening L connecting with the hopper A, and in another side aconnection with the air pipe M, see Fig. 3, which is provided at itsupper end with the valve N and valve seat O. The normal position of thevalve N, is open, as shown, and said valve isonly intended to closeupward against the seat O in case'of some accident occurring by whichthe contents ot' the pipe B should move backward down said pipe andupward into the air pipe M, at which time the ashes and Water strikingthe valve N would lift and close it and be thereby prevented fromvescaping.

Within the lower' section K of the pipe B there is pr'ovided the annularflange P, see Fig. 4, and also the tapered nozzle Q, the latter havingat its lower end the Hangs R and being bolted to the flange S at thelower end of the section K.

Below the flange P and between the nozzle Q and surrounding walls ot thepipe section ICO K, is formed the annular chamber T, which is in directcommunication with the air supply pipe M and has for its exit thecontracted annular space left between the upper end of the nozzle Q andthe inner edge of the ilange P, as shown in Fig. 4.

Within the nozzle Q is centrally arranged the nozzle V, which is securedin place by the encircling Hauge W thereon being' bolted to the flangesR, S, above referred to.

Between the nozzle Q and the nozzle V is formed the annular space X forthe passage of the sea-water, and this space X is continued through theflange, iV, as shown in Figs. 4 and 5, in which itwill be seen that thatportion of the flange Wadjacent to the nozzle V is removed except atintervals at which connecting ribs remain to sustain the nozzle.

The outlets F, G, from the valve .casing C are, for a portion of theirlength, one within the other, the parts being so arranged that the waterunder pressure, (the water from the pumps) will pass through the outletG, and the sea-water through the outlet F; and these outlets F, G, arein communication respectively with the nozzle Q and the nozzle V throughthe medium of the connection H, which is bolted at one end to theflanges R, SJV, and at the other end to the flange Y encircling saidoutlets. The connection H has an interior tube Z supported by ribs a andpassing directly between the outlet G and nozzle V, and around the tubeZ is the space I) which extends directly from the outlet F to the nozzleQ; thus it will be noted that the water under pressure from the pumpswill pass from the valve casing C through the outlet G, tube Z andnozzleVto the discharge pipe B, and that the sea-wateror other water notunder pressure will pass to the discharge pipe B through the outlet F,space b and nozzle Q, while the air from the pipe M escapes to the saiddischarge pipe from the annular chamber T, and the ashes are movedupward by the combined elements and dis-` charged through the side ofthe ship into the sea.

The valve casing C is divided by a part-ition d into two compartments@,f, the former being between the inlet D for sea-water and the outlet Ffor same, and the compartment f being between the inlet E for the waterunder pressure and the outlet G for same, as shown in Fig.2. The inlet Ewill be connected by a pipe, not shown, with the usual pumps which willsupply the water under pressure to create the upward current through thedischarge pipe B, and the inlet D will be connected with an ordinarypipe, not shown, passing through the bottom of the ship to the sea or toany other preferred source of water supply.

Centrally within the valve casing C and extending longitudinally throughthe coinpartments e, f, is the reciprocating rod g, on which are securedthe hollow valves h, t', which at their ends closely tit the walls ofthe compartments e, f, and are provided with ports j, k, extendingentirely around the valves with the exception of the spaces occupied bythe plain ribs (shown in Fig. 2) intermediate the hub and outer shell ofsaid valve. The ports I7', 79 co-operate with the annular ports n, o,n', o', and 1J, q, p', q', respectively located at opposite ends of thecompartments e, f, and being in communication with the annular chambersr, s, surrounding said compartments and leading respectively into theoutlets F, G.

The valves h, t', are shown in their closed position in Fig. 2,in whichit will be observed that the portsj, k, are intermediate the ports n, 0,n', o', and p, (1,29', q', and communication between the inlets D, E,and outlets F, G, is cut oit. lVhen, however, the rod g and valves h,t', are moved to the right a delinite distance, the ports 'j will comeinto line with the ports, o, o', and the ports 7c into line with theports q, q'; and under this condition of the ports free communication isestablished from the sea-water inlet D to the outlet F, and from theinlet E for water under pressure to the outlet G. During this opencommunication between the inlets D, E, and outlets F, G, the water underpressure passes from the inlet E into the hollow valve t', and

thence through the ports 7c, k, and q, q', and

also through the open ports p, p', to the surrounding chamber s,whichopens into the outlet G, as shown; while the sea-wateror water not underpressure from the pumps passes from the inlet D into the hollow valve hand thence through the ports .7',j, and o, o', and also through the openports a, n', to the sur rounding chamber r, which directly opens intothe outlet F. The ports n, n' and 19,19', are uncovered when the Valvesh, z', are open and they with the chambers 7', s, form iucreasedfacilities for the free passage of the water from the inlets D, E, tothe outlets F, G.

At the right hand end of the valve casing C there is formed the reducedcylindert centrally in line with the adjoining compartment fand thecylinder w, which is of increased area and provided at its outer endwith the discharge port The cylinder casing w is bolted to the end ofthe valve casing C and supports the longitudinal belts y, looselyreceiving the head z which is adjustably held in place by the nuts A andforms a stop for the coiled spring B'. The spring B' enco1npasses thevalve stem C and is held between the head z and the head D', the latterbeing on the valve stem C' and backed by the nut E', as shown moreclearlyin Fig. 9. Theforce exerted by the spring B' may of course beregulated by the adjustment of the nuts A', and the throw of the valvestem C may be regulated by the nut E. The outer end of the valve stem C'passes freely through the head e, and said stem at its inner end passesthrough the central port F' in the piston valve G and carries the smallvalve Il', whose seat is on the inner edges of said port F'.

The piston valve G' has its seat against the outer end of the cylinder tand is itself lo- TOC IIO

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cated in the cylinder w, and said valve G' is connected with the right.hand end of the main valve rod g through the medium of the arms I andyhead J', the latter being held on the rod g and against the end of thevalve i by a nut, as shown in Fig..9. The valve G is thus connected withthe main lvalve rod g and its movement is simultaneous with that oflthefvalves h, t', as hereinafter more fully explained. The small valveH has an outward movement simultaneously with that of the valve G' whenactuated by the due amount of the pressure of the water from the pumps,but said valve H' is independent of the valve G' and capable of movinginward in advance of the same when the pressure of the water from thepumps against said valve H' has become reduced below the opposing forceexerted by the spring B' during its cornpression between the heads D',e'.

The movement of the valves h, t', is con-y trolled by the pressure ofthe water from the pumps and the action of the valves G', H', and hencethe operation of said valves h, fi, is automatic,but owing to accidentor other circumstance an occasion might arise in which it would bedesirable or necessary to effect the reciprocation of the valves h, t',by hand and to meet this emergencyl have provided the left hand end ofthe valve rod g with means presently to be described by which the saidrod and valves h, z', may be operated by yhand when desired, and whichwill not interfere with the automatic movement of said valves.V

In the arrangement of the means shown in Figs. 1 and 2 for operating thevalves 71, t', by hand the left hand end of the main valve rod g extendsthrough the head K' into the casing L' and carries a head M' betweenwhich and the head K' there is retained the coiled spring N', whosetension may be regulated by the adjustment of the nut O whichretains thehead M on the rod and against the spring. The outer extremity of the rodg carries the plate P' having the opening Q' adapted to receive andpermit the movement of the crank pin R', which on being rotated by a rodS in `a well known manner will impart a reciprocating movement to therod g and valve` h, t', thus bringing the ports j, 10,01? said valvesinto line with the ports 0, o', and q, q', re-

spectively and establishing communication between the inlets D, E, andthe outlets F, G, respectively, for the water under pressure and thesea-water. Upon the release of the rod S the tension of the springN"-will move the rod g and valves h, t' sufficiently to bring the portsj, 7c, to au intermediate position, as shown in Fig. 2, and cut off thecommunication between the inlets D, E, and outlets F, G.

The spring N' is of importance apart from the manual means provided forreciprocating the rod g and valves h, in that its force is alwaysexerted to retain the valves 7m; and valve G' in their closed positionshown in Fig. 2 except at such times as its force is overcome by thepressure created against the valve G' by the water from the pumps'.

-In the operation of the apparatus constituting the invention the waterfrom the pumps is the pressure utilized to act upon the valves G', H',for opening the main valves h, t', andY itis to be remembered that thispressure must be sufficient to overcome the counter pressure exerted bythe springs B', N', in order that both valves G', H', may move outwardtogether. The water from the inlet E passes through the hollow valve t'and against the valves G', H', which after the pressure of the water hasbeen raised to the proper degree will move outward toward the right,opening communication from the inlets D, E, to the outlets F,.G, andpermitting the water under pressure to pass through the outlet G, tubeZ, and nozzle V, with sufficientV force to move up through thedischargepipe B and carry a sufficient body7 of the water from the sea throughthe outlet F, space b and nozzle Q to form a volume filling the pipe Band carrying upward whatever ashes or other matter that may pass fromthe lower end of the hopper A. The valves G', H', will not move outwardto open the valves h, 7S, until the pressure of the water from the pumpsis great enough to leffectually move the volurne of water and ashesupward through the discharge pipe B, and said valves G', H', will onlyremain in their outwardfposition so long as the .required amount oflpressure lis maintained against them by thev pumps, since anytreductionof said pressure would permit the springB' to instantly movethe valve H' inwardV fromt-he valve G', thus opening the port F' andreducing the effective surface area of the valves G', H to such anextent that the spring N' immediately retracts the valves h, fi, G', totheir closed position, where theyf'remain untily the pressure from thepumps has increased sufficiently to again overcome the force of thespringsB', N', and move the valves G', H' and h, 1l, outward to theright again. The discharge pipe B is thus not opened to the influx ofwater until a force. has been created sufiicientto elevate and keep inupward motion the volume filling vthe dischargefpipe B. Y I

, The required amount of pressure from the pumps to accomplish theeffectual discharge of the ashes and water through the pipe B will ofcourse-vary with the size of the pipe, its position and othercircumstances, and hence the force of the springs B', N', will alsovaryin accordance with the conditions of their use. i f Y 4 The valvesG', H', will under all circumstances be sufficiently loaded by thesprings as not to yield tothe pressure of the water from the pumps untilthat amount hasy beencreated fully adequate to accomplish the upwardmovement of the volume through the pipe B. When the valves G' H', are intheir IIO closed position, as shown in Fig. 2, their full surface areais not exposed, but when they start to move outward toward the right thevalve G leaves the edges of the cylinder t and exposes its full surfacearea in thelarger cylinder fw, hence it moves outward quickly afterstarting and the water is allowed a sudden impetus to the outlets F, G,and nozzles V, Q. During the upward movement of the volume through thepipe B the air enters through the pipe M and chamber T and facilitatesthe operation of the apparatus.

It will be observed on reference to Figs. 2 and 9 that the cylinder w isprovided with small ports A, which are open to the discharge .fc whenthe valve G is closed and thus permit any leakage around said valve toescape to the said discharge and be conducted away. Then the valve G isopen or in its outward position to the left, it will pass beyond theports A and thus cut off their communication with the outlet Theapparatus made the subject of this application has been described as anash ejector, but it is to be understood that its use is not exclusivelyconfined to elevatingand carrying away ashes, since other materials orrefuse may also be successfully discharged by it.

Vhat I claim as my invention and desire to secure by Letters Patent, is

1. The hopper and discharge pipe, combined with the inlet for waterunder pressure, the nozzle communicating therewith and leading to saiddischarge pipe, the inlet for water not under pressure, the nozzlecommunieating with said last named inlet and leading to said dischargepipe, and a valve intermediate said inlets and nozzles; substantially asset forth.

2. The discharge pipe and the hopperleading into the same, combined withthe nozzle Q below said hopper, the smaller nozzle V within said nozzleQ, the air chamber surrounding the nozzle Q, the inlet for water uuderpressure communicating with the nozzle V, and the inlet for water notunder pressure communicating with said nozzle Q; substantially as andfor the purposes set forth.

3. The hopper and discharge pipe,combined with the inlet for water underpressure, the nozzle communicating therewith and leading to saiddischarge pipe, the inlet for water not under pressure, the nozzlecommunicating with said last named inlet and leading to said dischargepipe, and an air inlet leading to said discharge pipe; substantially asand for the purposes set forth.

4. Thehopper and discharge pipe, combined with the inlet for water underpressure, the nozzle communicating therewith and leading to saiddischarge pipe, the inlet for water not under pressure, the nozzlecommunicating with said last named inlet and leading to said dischargepipe, an air inlet leading to said discharge pipe, and a valveintermediate said inlets and nozzles and subject to the pressure.

of the water from the pumps; substantially as and for the purposes setforth.

5. Thehopper and discharge pipe, combined with the inlet for water underpressure leading to said pipe, the inlet for water not under pressureleading to said pipe, and the valve intermediate said pipe and saidinlets and dependent on the pressure of the water from the pumps;substantially as and for the purposes set forth.

6. The hopper and discharge pipe, combined with the inlets for waterunder pressure and water not under pressure leading respectively to saidpipe, the valve casing connected with said inlets with aseparate-compartment tor each, the valve rod carrying valves in saidcompartments, the valve G connected with said rod, the valve I-l seatedagainst said valve G', the spring acting on the valve ll and the springacting on the valve G; substantially as and for the purposes set forth.

7. The hopper and discharge pipe, combined with the inlets for waterunder pressure and water not under pressure leading respectively to saidpipe, the valve casing connected with said inlets with a separatecompartment for each, the ports n, o, n', o', p, (1,13', q', andchambers r, s, in said compartments, the reciprocating valves havingports j, 7s, in said compartments, and means substantially as describedfor operating said valves j, 7c, by the action of the water underpressure; substantially as and for the purposes set forth.

8. The hopperand discharge pipe, combined with the inlets for waterunder pressure and water not under pressure leadiu g respectively tosaid pipe, the valve casing connected with said inlets with a separatecompartment for each, the valves in said compartments, and meanssubstantially as described for resisting the opening of said valvesexcept above a definite pressure of the water from the pumps;substantially as and for the purposes set forth.

9. The hopper and discharge pipe combined with the inlets for waterunder pressure and water not under pressure leading respectively to saidpipe, the valve casing connected with said inlets with a separatecompartment for each, the valve rod carrying valves in saidcompartments, the cylinders t, w, at the end of said casing, the valvesG, H', in said cylinders, and the springs acting on said valves;substantially as and for the purposes set forth.

Signed at New York, in the county of New York and State of New York,this 2d day of September, A. D. 1892.

GEORGE CLARKE.

Vitnesses:

(JI-ms. C. GILL, ED. D. MILLER.

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